I wonder if their children inherit the fetish. Hopefully most of them will do each other when in their teens in case it is genetic.
Years ago some kids playing in a rural park here found some strange looking objects and told their parents. The parents called the police. Human testicles. The police put out a BOLO to all the area hospitals and doctors in case the owner showed up. He did. He was seriously screwed up. He'd convinced himself that his testicles were killing him and he castrated himself in the park.